Quote:
Originally Posted by knauck
Since you seem to insist on a picture for some reason, here's one where one possible set happen to show up in.
https://copy.com/MqdB1m3aPLBVSAF7
Note the four gold pads near the EInk display ribbon cable. They could easily be related to debugging the panel as QC before shipment, but hey. You never know.
EDIT: They are used for something at some point of the manufacture process. I deduce this from the fact that there are very small pin-tip size scars on them in all three kpw's I've disassembled to date. |
Those are most likely for loading the waveform calibration eeprom on the cable.
Which is on one of either the SPI or I2C buses.
You should be able to confirm using the appropriate utilities to 'walk' those buses.
Quote:
lsusb gives me:
Code:
Bus 001 Device 001: ID 1d6b:0002
Bus 001 Device 002: ID 1949:9001
I did a cursory check of the PCI databases, but neither vendor ID returned a name. No idea what the devices are related to yet.
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Those are the two USB buses brought out from the SoC.
The internal 'host' bus interface and the external 'OTG' bus interface.
More details available in the Freescale manuals on the mx508 SoC.
The internal USB bus appears on the 3G connector, on standardized pins for that hardware interface.
Check the published documentation on that connector's pin-out for details.